In lab, suppose that we used 0.7885 grams ofCalcium carbonate (MW 100.09) dissolved in 250mL and for a 50mL aliquot it tookexactly 43.23 mL of EDTA to titrate.Our 5.000 gram unknown sample was dissolved in 250ml and a 50 ml aliquot was usedto determine the unknown concentration. If it took 33.45 mL of EDTA to get to the pointof colour change, what is the %Ca (MW 40.078) in the original sample?
In lab, suppose that we used 0.7885 grams ofCalcium carbonate (MW 100.09) dissolved in 250mL and for a 50mL aliquot it tookexactly 43.23 mL of EDTA to titrate.Our 5.000 gram unknown sample was dissolved in 250ml and a 50 ml aliquot was usedto determine the unknown concentration. If it took 33.45 mL of EDTA to get to the pointof colour change, what is the %Ca (MW 40.078) in the original sample?
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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In lab, suppose that we used 0.7885 grams of
Calcium carbonate (MW 100.09) dissolved in 250mL and for a 50mL aliquot it took
exactly 43.23 mL of EDTA to titrate.
Our 5.000 gram unknown sample was dissolved in 250ml and a 50 ml aliquot was used
to determine the unknown concentration. If it took 33.45 mL of EDTA to get to the point
of colour change, what is the %Ca (MW 40.078) in the original sample?
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